MC33102P - Dual 100nA 1.7V/us Operational Amplifier | Onsemi
部品番号: MC33102P ✗ 生産終了MC33102P 概要
An operational amplifier is an active analog signal-conditioning component that uses high-gain differential amplification to increase the voltage level of a weak or small signal. A dual operational amplifier contains two amplifier sections in one package, allowing two related signals to be processed simultaneously while reducing board area. The MC33102P adds Sleep-Mode technology to this familiar amplifier function, making it useful in portable instruments, sensor interfaces, battery-powered systems, and other applications where standby consumption matters.
The MC33102P's main features include dual general-purpose amplifier channels, a sleep-mode operating state, an awake-mode operating state, 100 nA supply current, 1.7 V/us slew rate, and 4.6 MHz gain-bandwidth product. The low supply current supports designs that spend significant time monitoring or waiting for a valid input. The sleep and awake states provide a mechanism to control when the amplifier is intended to respond to signal activity.
The dual configuration allows the part to handle two amplifier functions in one package, such as signal conditioning for two sensor channels, an instrumentation front end, or gain stages around a comparator and data-conversion system. The 4.6 MHz gain-bandwidth product supports moderate-bandwidth applications, while the 1.7 V/us slew rate provides useful response for slowly varying and low-to-moderate-frequency analog signals. Its PDIP-8 package is suitable for conventional through-hole PCB assembly and prototyping.
When designing around the MC33102P, check the input common-mode range, output swing, supply-voltage limits, stability requirements, and the meaning of the sleep-mode control behavior in the manufacturer datasheet. Place the device close to the signal source when handling high-impedance nodes, provide normal bypassing at the supply pins, and account for input bias-current errors and offset voltage when resolving low-level signals.
This product page combines the MC33102P device identity, package information, operating characteristics, sourcing guidance, comparison framework, and practical design notes. The information is intended to help engineers confirm pin compatibility, assess the dual low-power amplifier architecture, and select a suitable replacement or design approach without treating a different package or electrical function as a drop-in substitute.
ドロップイン代替品: MC33102P — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
この製品に利用可能なドロップイン代替品はありません。
代替品をリクエストMC33102P 最大定格＆電気的特性
| Device Type | Dual operational amplifier |
| Number of Amplifier Channels | 2 channels |
| Operating States | Sleep mode and awake mode |
| 電源電流 | 100 nA |
| Slew Rate | 1.7 V/us |
| Gain-Bandwidth Product | 4.6 MHz |
| Package Type | PDIP-8 |
| 実装タイプ | Through-hole |
MC33102P pdip-8 ピン配置ガイド
MC33102P (pdip-8 パッケージ) のピン配置。 このアナログコンポーネントは、入力、出力、および電源ピンを備えています。オフセットナル、補償、イネーブルピンの設定については、メーカーのデータシートを参照してください。信号調整やアンプ回路に最適です。
詳細なピン配置データはありません: MC33102P.
詳細は データシート をご参照ください。
主な用途
MC33102P の用途: 6 件s: Battery-Powered Sensor Signal Conditioning, Portable Instrumentation, Low-Power Threshold Detection, Low-Leakage Buffering, Industrial Current Sensing, Audio and Communication Interface Circuits.
Battery-Powered Sensor Signal Conditioning
The MC33102P fits battery-powered sensor front ends that need two low-power amplifier channels and a controlled low-consumption waiting state. Its specified 100 nA supply current is useful when the sensor output is monitored intermittently, while the sleep-mode and awake-mode architecture can support duty-cycled operation. The two channels can condition complementary outputs, amplify differential sensor signals, or provide gain before an ADC. Before implementation, verify the sensor's common-mode range, required accuracy, output swing, and the MC33102P's offset and bias-current behavior. A high-impedance sensor node may also require guarding, short feedback paths, and careful grounding to prevent leakage and parasitic capacitance from degrading the measured signal.
Portable Instrumentation
The MC33102P is appropriate for compact handheld instruments where two analog channels must operate from a constrained power budget. A 4.6 MHz gain-bandwidth product supports common low-frequency measurement and buffering functions, while the 1.7 V/us slew rate avoids the severe bandwidth limitation associated with very slow micropower amplifiers. The dual package reduces the number of amplifier components required for differential or sequential analog channels. Use the awake state while acquiring a measurement and the sleep state during idle intervals, subject to the control timing defined by the manufacturer. Confirm input bias current, offset voltage, output swing, and stability with the chosen feedback network before building a precision measurement chain.
Low-Power Threshold Detection
The MC33102P can amplify a weak signal before a comparator evaluates whether an event has occurred, allowing the awake state to be activated only when signal monitoring is needed. Its dual-channel architecture can provide one conditioned path for the monitored signal and another for a reference or feedback condition, provided the complete input and output ranges satisfy the circuit requirements. The 1.7 V/us slew rate helps the amplifier follow moderate signal transitions, and the 4.6 MHz gain-bandwidth product allows moderate closed-loop gains. Check comparator input range, offset, noise, and propagation delay as a complete signal chain, since the amplifier's low-power specification alone does not determine final detection accuracy.
Low-Leakage Buffering
The MC33102P is suitable for buffering high-impedance analog nodes where amplifier bias current can materially affect measurement accuracy, subject to the datasheet's input-bias-current limits. The 100 nA supply-current figure supports low-power sensing, while the dual configuration allows two related high-impedance nodes to be buffered without using two separate packages. Pay particular attention to source-node settling, input capacitance, guarding, board contamination, and the required bias-current error budget. A short, guarded layout around each input can reduce leakage and capacitance effects. Verify that the selected feedback gain does not violate the manufacturer's stability or bandwidth recommendations, especially when driving an ADC, multiplexer, or long cable.
Industrial Current Sensing
The MC33102P can support current-sense signal conditioning in industrial equipment when the application operates within its specified supply voltage and input range. Two amplifier channels can be used for gain and filtering functions around a low-value shunt or sensor output. Its 1.7 V/us slew rate is useful for moderate-bandwidth control and monitoring signals, while the 4.6 MHz gain-bandwidth product provides headroom for closed-loop amplification. Industrial systems must still account for common-mode voltage, shunt error, electromagnetic interference, and the operating temperature range. Confirm those limits in the manufacturer datasheet, and use a shielded or protected input path when the shunt is located near switching power stages.
Audio and Communication Interface Circuits
The MC33102P may be used in low-level audio or communication interface paths when the signals fall within the amplifier's input and output limits and moderate rather than high-fidelity wideband performance is required. The dual channels can support separate transmit and receive signal-conditioning paths, while the sleep and awake states can reduce consumption between active intervals. Its 4.6 MHz gain-bandwidth product is above many general-purpose micropower amplifiers, though the 1.7 V/us slew rate limits large-signal performance. For audio paths, evaluate output swing into the load, distortion, noise, and the required bandwidth. For communication paths, evaluate crosstalk, channel isolation, and common-mode behavior in the actual board environment.
エンジニアリング参考データ: MC33102P — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
Use a conventional dual operational amplifier instead when sleep-mode control is unnecessary and that device provides better offset accuracy, lower noise, wider common-mode input range, greater output swing, faster slew rate, or more stable operation with the intended capacitive load. Those electrical differences matter more than package appearance. No verified drop-in replacement was identified in the targeted cross-reference results, so a substitute should not be selected on package name alone. Require the same eight-pin pinout, dual-channel function, compatible control behavior, and electrical limits before redesign approval.
代替品との比較
| パラメータ | この製品 |
|---|---|
| Package | PDIP-8 |
| Brand | onsemi |
| Device Type | Dual operational amplifier |
| Number of Amplifier Channels | 2 channels |
| Operating States | Sleep mode and awake mode |
| Supply Current | 100 nA |
| Slew Rate | 1.7 V/us |
| Gain-Bandwidth Product | 4.6 MHz |
主な差別化要因
- Dedicated two-state operating architecture （vs MC33102P)
- Dual-channel integration （vs MC33102P)
- Low-power operating specification （vs MC33102P)
設計ノート
Use the MC33102P sleep and awake states only after confirming the control polarity, transition timing, and current consumption for each state in the manufacturer datasheet. Place the input and output networks so they do not force the amplifier into an active condition during the intended sleep interval. Check divider currents, leakage through external protection devices, and any status logic because these can dominate the device's specified 100 nA supply current.
Route the two amplifier channels with short feedback paths and keep sensitive input traces away from switching nodes and high-current ground returns. Place supply-bypass capacitors close to the device's power pins, with the grounding path arranged to minimize shared impedance. For high-impedance inputs, use guarded traces or a grounded guard ring where leakage and board contamination can affect the measurement.
Do not assume that a standard dual operational amplifier with the same package is a drop-in replacement. The MC33102P includes a two-state Sleep-Mode architecture, so the replacement must match the control pin, input and output assignments, supply-current behavior, common-mode range, output swing, and compensation requirements. Verify the complete pin description table and electrical limits before approving any substitute.
コンプライアンス情報
The identified MC33102P product information does not explicitly state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is not applicable because the MC33102P is a general-purpose operational amplifier rather than an automotive-qualified device.